基于尖点突变理论的水平矿柱稳定性分析  

Stability Analysis on Horizontal Pillar Based on Cusp Catastrophe Theory

作　　者：江文武[1] 伍福海[1] 

机构地区：[1]江西理工大学应用科学学院,江西赣州市341000

出　　处：《矿业研究与开发》2010年第6期1-3,41,共4页Mining Research and Development

摘　　要：为了探明金川二矿区多中段开采时临时水平矿柱的稳定性,基于多中段同时开采下水平矿柱的受力特征,提出了水平矿柱的力学模型,在此基础上,采用突变理论的分析方法,通过对水平矿柱力学模型的分析,推导出了水平矿柱总势能表达式,建立了水平矿柱的尖点突变模型,最终导出了水平矿柱失稳的充要力学条件判据,获得了水平矿柱失稳概率小的结论,并提出了水平矿柱回采的工程技术措施。In order to know the stability of the temporary horizontal ore pillar during sim ultaneously mining in more than one level in Jinchuan No.2 mine,according to the stress characteristics of the horizontal pillar the mechanics model for it were proposed. On that basis,the total potential energy expression of the horizontal pillar was derived out by the analytical method of catastrophic theory,the cusp catastrophic model for predicting the failure of the horizontal pillar was set up,and the necessary and sufficient mechanical conditions leading to the active earth pressure were presented. It was concluded that the failing probability of the pillar is small.For the safe recovery of the pillar,some engineering measures were given.

关 键 词：水平矿柱 突变理论 稳定性分析 金川二矿区 

分 类 号：TD31[矿业工程—矿井建设]